Obduction is an adventure video game developed by Cyan Worlds. Obduction is considered a spiritual successor to Cyan's previous adventure games, Myst and Riven. In the game, the player finds their character transported to strange alien worlds but with human elements within the settings. The player must explore and solve puzzles to figure out how to return home. Internally, the game was developed with the mantra of "Myst in space"; comparable to Myst's Ages, the player explores different alien worlds, with means to travel back and forth between them similar to the Linking books. Though they initially wanted to move away from being too Myst-like, treating the title as a spiritual successor, they found that during development they were naturally brought back to structuring the game similar to Myst. The game will include three non-player characters (NPCs), which originally were planned to be rendered and animated within the game's engine, but by March 2015, Cyan decided to return to the use of full-motion video of live actors that will be incorporated into the game, in the same manner as they used in Riven. Source: Wikipedia, "Obduction (video game)", available under the CC-BY-SA License.